[While he is not certain he wants Chika coming into this mess, he must admit that it would be hypocritical of him to turn her away. After all, barely anyone here is over the age or 16 so...]

Your digimon can fly, right Chika?

I might suggest gathering other digimon of the same and perhaps providing aerial support to those areas that need it. I think especially the east while might be good since, if it is a trap, you and anyone else in the air will be able to see if someone is lying in wait to ambush from atop the wall.